The apartment is well equipped and the 12th floor view is impressive. Easy walk to two BTS (elevated sky train) stations, both of whom have escalators/elevators now. Nana station access is via the newish Hyatt on the corner of Soi 13 and Sukhumvit (exterior escalators and an elevator, for your luggage), While the Asok station is easily accessed inside Robinson's on Sukhumvit just before Terminal 21 mall (or inside Terminal 21 itself, a bit further along). The BTS offers air conditioned transit to many places, including to BKK by connecting to the Airport Link.